3 Technical data
K-375 / K-376 / K-377
Operation Manual, Version E
27
Recovery rate
>
99.5 % (1 – 200
mg N)
Reproducibility (RSD)
<
1 %
Measuring range
0.02 – 200 mg N
Environmental conditions
Tempera-
ture
Altitude
Humidity
for indoor use only
+ 5 °C to + 40 °C
up to 2000 m above sea level
maximum relative humidity 80 % for temperatures up to 31 °C, decreasing
linearly to 50 % relative humidity at 40 °C
Mains connection
Device plug C14
Device plug C14
Device plug C14
Overvoltage category
II
II
II
Pollution degree
2
2
2
Approval
CE/CSA
CE/CSA
CE/CSA
3 2 2
Technical data titrator
The following sensors can be connected to the titrator:
∙ combined pH glass electrode
∙ optical sensor
∙ temperature measuring sensor for Resistance Thermometer Pt 1000, connection: 2 x 4 mm
sockets and 1 x 2 mm socket
Dosing accuracy:
According to DIN EN ISO 8655, Part 3, or better
Typical accuracy: Fulfills ISO/DIN 8655-3 regulation
Measuring input: pH/mV input with 12 bit transducer for accurate resolution during the titration
Connection:
electrode socket according to DIN 19 262 or BNC socket and reference electrode 1 x 4 mm socket
Measuring range
Display resolution
Accuracy* without
sensor
Input resistance (
Ω
)
pH 0…14
0.01
0.05 ±1 digit
> 5·10
12
mV –1400 ... +1400
0.1
2 ±1 digit
> 5·10
12
sensor
Measuring range
Display resolution
Accuracy* without
